🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.47 AU - 0.59 AU

Year: 249 Days

Day: 16.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.2

Radius: 10.9

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.63 AU - 0.89 AU

Year: 428 Days

Day: 5.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,439,536 km

• M1: 135,685 km (0.083 R)
• M2: 486,193 km (0.083 R)
• M3: 832,961 km (0.114 R)
• M4: 1,307,186 km (0.084 R)
• M5: 1,722,470 km (0.118 R)
• M6: 2,208,364 km (0.101 R)
• M7: 3,226,377 km (0.085 R)
• M8: 3,628,048 km (0.106 R)
• M9: 4,663,265 km (0.114 R)
• M10: 5,515,823 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.5

Radius: 12.9

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.81 AU - 1.13 AU

Year: 617 Days

Day: 11.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,439,536 km

• M1: 160,818 km (0.104 R)
• M2: 703,858 km (0.043 R)
• M3: 1,148,612 km (0.045 R)
• M4: 2,119,203 km (0.047 R)
• M5: 3,426,090 km (0.084 R)
• M6: 3,884,458 km (0.065 R)
• M7: 4,329,362 km (0.091 R)
• M8: 4,940,918 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.5

Radius: 8.4

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.84 AU - 3.04 AU

Year: 2461 Days

Day: 15 Hours

Environment

Temp: -189 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 17,439,536 km

• M1: 104,419 km (0.116 R)
• M2: 369,956 km (0.054 R)
• M3: 743,352 km (0.03 R)
• M4: 1,081,892 km (0.051 R)
• M5: 1,925,923 km (0.116 R)
• M6: 2,736,145 km (0.078 R)
• M7: 3,218,748 km (0.109 R)
• M8: 3,489,520 km (0.096 R)
• M9: 4,019,246 km (0.111 R)
• M10: 4,313,655 km (0.069 R)
• M11: 4,793,265 km (0.087 R)
• M12: 5,193,140 km (0.068 R)
• M13: 5,615,006 km (0.084 R)
• M14: 6,264,560 km (0.098 R)
• M15: 6,963,332 km (0.036 R)
• M16: 7,274,196 km (0.109 R)
• M17: 7,803,025 km (0.084 R)
• M18: 9,892,458 km (0.107 R)
• M19: 10,358,456 km (0.09 R)
• M20: 10,952,060 km (0.096 R)
• M21: 11,725,631 km (0.068 R)
• M22: 12,085,414 km (0.117 R)
• M23: 16,745,088 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.2

Radius: 8.4

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 4.16 AU - 5.16 AU

Year: 6495 Days

Day: 14.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,439,536 km

• M1: 106,962 km (0.116 R)
• M2: 388,506 km (0.116 R)
• M3: 947,403 km (0.116 R)
• M4: 1,705,266 km (0.095 R)
• M5: 1,997,730 km (0.071 R)
• M6: 3,557,138 km (0.092 R)
• M7: 5,627,573 km (0.067 R)
• M8: 10,342,449 km (0.119 R)
• M9: 10,901,346 km (0.115 R)
• M10: 11,323,960 km (0.083 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 11,143 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit